reflow-oven-control-sw/stm-firmware/safety/fault.c

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/* Reflow Oven Controller
*
* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
*
* This file is part of the Reflow Oven Controller Project.
*
* The reflow oven controller is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* The Reflow Oven Control Firmware is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the reflow oven controller project.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <reflow-controller/oven-driver.h>
#include <reflow-controller/digio.h>
#include <reflow-controller/safety/fault.h>
#include <reflow-controller/safety/safety-memory.h>
#include <helper-macros/helper-macros.h>
void HardFault_Handler(void)
{
/* This is a non recoverable fault. Hang here */
oven_driver_set_power(0);
oven_driver_apply_power_level();
led_set(0, 1);
while (1);
}
/* Overwrite default handler. Go to panic mode */
void __int_default_handler(void)
{
panic_mode();
}
void panic_mode(void)
{
static struct safety_memory_boot_status IN_SECTION(.ccm.bss) boot_status;
/* Panic mode is esentially the same as a hardfault,
* but it can be expected, that more functionality is still usable
*/
oven_driver_set_power(0);
oven_driver_apply_power_level();
/* TODO: implement panic mode */
if (!safety_memory_get_boot_status(&boot_status)) {
boot_status.reset_from_panic = 0xFFFFFFFF;
(void)safety_memory_set_boot_status(&boot_status);
}
while (1);
}